Summary data stasiun Wanliu

Dataset statistics

Number of variables	18
Number of observations	35064
Missing cells	6447
Missing cells (%)	1.0%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	4.8 MiB
Average record size in memory	144.0 B

Variable types

Numeric	15
Categorical	3

Alerts

`station` has constant value ""	Constant
`CO` is highly overall correlated with `NO2` and 3 other fields	High correlation
`DEWP` is highly overall correlated with `PRES` and 1 other fields	High correlation
`NO2` is highly overall correlated with `CO` and 4 other fields	High correlation
`No` is highly overall correlated with `year`	High correlation
`O3` is highly overall correlated with `NO2` and 1 other fields	High correlation
`PM10` is highly overall correlated with `CO` and 3 other fields	High correlation
`PM2.5` is highly overall correlated with `CO` and 3 other fields	High correlation
`PRES` is highly overall correlated with `DEWP` and 1 other fields	High correlation
`SO2` is highly overall correlated with `CO` and 3 other fields	High correlation
`TEMP` is highly overall correlated with `DEWP` and 2 other fields	High correlation
`year` is highly overall correlated with `No`	High correlation
`PM2.5` has 382 (1.1%) missing values	Missing
`SO2` has 575 (1.6%) missing values	Missing
`NO2` has 1070 (3.1%) missing values	Missing
`CO` has 1812 (5.2%) missing values	Missing
`O3` has 2107 (6.0%) missing values	Missing
`RAIN` is highly skewed (γ1 = 34.94218413)	Skewed
`No` is uniformly distributed	Uniform
`No` has unique values	Unique
`hour` has 1461 (4.2%) zeros	Zeros
`RAIN` has 33608 (95.8%) zeros	Zeros
`WSPM` has 1640 (4.7%) zeros	Zeros

Reproduction

Analysis started	2024-03-08 05:16:24.293612
Analysis finished	2024-03-08 05:17:03.793354
Duration	39.5 seconds
Software version	ydata-profiling vv4.6.5
Download configuration	config.json

No
Real number (ℝ)

HIGH CORRELATION UNIFORM UNIQUE

Distinct	35064
Distinct (%)	100.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	17532.5

Minimum	1
Maximum	35064
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1754.15
Q1	8766.75
median	17532.5
Q3	26298.25
95-th percentile	33310.85
Maximum	35064
Range	35063
Interquartile range (IQR)	17531.5

Descriptive statistics

Standard deviation	10122.249
Coefficient of variation (CV)	0.57734204
Kurtosis	-1.2
Mean	17532.5
Median Absolute Deviation (MAD)	8766
Skewness	0
Sum	6.1475958 × 10⁸
Variance	1.0245993 × 10⁸
Monotonicity	Strictly increasing

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	1	< 0.1%
23379	1	< 0.1%
23373	1	< 0.1%
23374	1	< 0.1%
23375	1	< 0.1%
23376	1	< 0.1%
23377	1	< 0.1%
23378	1	< 0.1%
23380	1	< 0.1%
23422	1	< 0.1%
Other values (35054)	35054	> 99.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1	< 0.1%
2	1	< 0.1%
3	1	< 0.1%
4	1	< 0.1%
5	1	< 0.1%
6	1	< 0.1%
7	1	< 0.1%
8	1	< 0.1%
9	1	< 0.1%
10	1	< 0.1%

Value	Count	Frequency (%)
35064	1	< 0.1%
35063	1	< 0.1%
35062	1	< 0.1%
35061	1	< 0.1%
35060	1	< 0.1%
35059	1	< 0.1%
35058	1	< 0.1%
35057	1	< 0.1%
35056	1	< 0.1%
35055	1	< 0.1%

year
Categorical

HIGH CORRELATION

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

2016	8784
2014	8760
2015	8760
2013	7344
2017	1416

Length

Max length	4
Median length	4
Mean length	4
Min length	4

Characters and Unicode

Total characters	140256
Distinct characters	8
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2013
2nd row	2013
3rd row	2013
4th row	2013
5th row	2013

Common Values

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Most occurring characters

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring categories

Value	Count	Frequency (%)
Decimal Number	140256	100.0%

Most frequent character per category

Decimal Number

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring scripts

Value	Count	Frequency (%)
Common	140256	100.0%

Most frequent character per script

Common

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	140256	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

month
Real number (ℝ)

Distinct	12
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	6.5229295

Minimum	1
Maximum	12
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1
Q1	4
median	7
Q3	10
95-th percentile	12
Maximum	12
Range	11
Interquartile range (IQR)	6

Descriptive statistics

Standard deviation	3.4487524
Coefficient of variation (CV)	0.52871219
Kurtosis	-1.2080577
Mean	6.5229295
Median Absolute Deviation (MAD)	3
Skewness	-0.0092942217
Sum	228720
Variance	11.893893
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=12)

Value	Count	Frequency (%)
3	2976	8.5%
5	2976	8.5%
7	2976	8.5%
8	2976	8.5%
10	2976	8.5%
12	2976	8.5%
1	2976	8.5%
4	2880	8.2%
6	2880	8.2%
9	2880	8.2%
Other values (2)	5592	15.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	2976	8.5%
2	2712	7.7%
3	2976	8.5%
4	2880	8.2%
5	2976	8.5%
6	2880	8.2%
7	2976	8.5%
8	2976	8.5%
9	2880	8.2%
10	2976	8.5%

Value	Count	Frequency (%)
12	2976	8.5%
11	2880	8.2%
10	2976	8.5%
9	2880	8.2%
8	2976	8.5%
7	2976	8.5%
6	2880	8.2%
5	2976	8.5%
4	2880	8.2%
3	2976	8.5%

day
Real number (ℝ)

Distinct	31
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	15.729637

Minimum	1
Maximum	31
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	2
Q1	8
median	16
Q3	23
95-th percentile	29
Maximum	31
Range	30
Interquartile range (IQR)	15

Descriptive statistics

Standard deviation	8.8002175
Coefficient of variation (CV)	0.55946729
Kurtosis	-1.1940295
Mean	15.729637
Median Absolute Deviation (MAD)	8
Skewness	0.0067598056
Sum	551544
Variance	77.443829
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=31)

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%
21	1152	3.3%
Other values (21)	23544	67.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
3	1152	3.3%
4	1152	3.3%
5	1152	3.3%
6	1152	3.3%
7	1152	3.3%
8	1152	3.3%
9	1152	3.3%
10	1152	3.3%

Value	Count	Frequency (%)
31	672	1.9%
30	1056	3.0%
29	1080	3.1%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%

hour
Real number (ℝ)

ZEROS

Distinct	24
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	11.5

Minimum	0
Maximum	23
Zeros	1461
Zeros (%)	4.2%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	1
Q1	5.75
median	11.5
Q3	17.25
95-th percentile	22
Maximum	23
Range	23
Interquartile range (IQR)	11.5

Descriptive statistics

Standard deviation	6.9222853
Coefficient of variation (CV)	0.60193785
Kurtosis	-1.2041745
Mean	11.5
Median Absolute Deviation (MAD)	6
Skewness	0
Sum	403236
Variance	47.918033
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=24)

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
Other values (14)	20454	58.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
2	1461	4.2%
3	1461	4.2%
4	1461	4.2%
5	1461	4.2%
6	1461	4.2%
7	1461	4.2%
8	1461	4.2%
9	1461	4.2%

Value	Count	Frequency (%)
23	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
14	1461	4.2%

PM2.5
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	539
Distinct (%)	1.6%
Missing	382
Missing (%)	1.1%
Infinite	0
Infinite (%)	0.0%
Mean	83.374716

Minimum	2
Maximum	957
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	6
Q1	23
median	59
Q3	116
95-th percentile	247
Maximum	957
Range	955
Interquartile range (IQR)	93

Descriptive statistics

Standard deviation	81.905568
Coefficient of variation (CV)	0.98237898
Kurtosis	5.3430366
Mean	83.374716
Median Absolute Deviation (MAD)	41
Skewness	1.9224929
Sum	2891601.9
Variance	6708.5221
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	691	2.0%
10	503	1.4%
8	501	1.4%
11	486	1.4%
12	480	1.4%
9	479	1.4%
14	463	1.3%
13	453	1.3%
7	444	1.3%
6	436	1.2%
Other values (529)	29746	84.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	1	< 0.1%
3	691	2.0%
4	295	0.8%
5	334	1.0%
6	436	1.2%
7	444	1.3%
8	501	1.4%
9	479	1.4%
10	503	1.4%
11	486	1.4%

Value	Count	Frequency (%)
957	1	< 0.1%
791	1	< 0.1%
770	1	< 0.1%
718	1	< 0.1%
708	1	< 0.1%
692	1	< 0.1%
664	1	< 0.1%
661	1	< 0.1%
657	1	< 0.1%
638	1	< 0.1%

PM10
Real number (ℝ)

HIGH CORRELATION

Distinct	616
Distinct (%)	1.8%
Missing	284
Missing (%)	0.8%
Infinite	0
Infinite (%)	0.0%
Mean	110.46462

Minimum	2
Maximum	951
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	12
Q1	40
median	88
Q3	153
95-th percentile	289
Maximum	951
Range	949
Interquartile range (IQR)	113

Descriptive statistics

Standard deviation	92.795065
Coefficient of variation (CV)	0.84004333
Kurtosis	4.7095494
Mean	110.46462
Median Absolute Deviation (MAD)	54
Skewness	1.6964547
Sum	3841959.4
Variance	8610.9241
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
6	333	0.9%
16	292	0.8%
17	287	0.8%
18	285	0.8%
14	285	0.8%
24	282	0.8%
15	274	0.8%
23	270	0.8%
21	269	0.8%
20	268	0.8%
Other values (606)	31935	91.1%
(Missing)	284	0.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	14	< 0.1%
3	34	0.1%
4	18	0.1%
5	230	0.7%
6	333	0.9%
7	169	0.5%
8	207	0.6%
9	205	0.6%
10	221	0.6%
11	225	0.6%

Value	Count	Frequency (%)
951	1	< 0.1%
923	1	< 0.1%
919	1	< 0.1%
893	1	< 0.1%
845	1	< 0.1%
829	1	< 0.1%
806	1	< 0.1%
792	1	< 0.1%
785	1	< 0.1%
784	1	< 0.1%

SO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	460
Distinct (%)	1.3%
Missing	575
Missing (%)	1.6%
Infinite	0
Infinite (%)	0.0%
Mean	18.376481

Minimum	0.2856
Maximum	282
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2856
5-th percentile	2
Q1	4
median	10
Q3	23
95-th percentile	65
Maximum	282
Range	281.7144
Interquartile range (IQR)	19

Descriptive statistics

Standard deviation	22.609648
Coefficient of variation (CV)	1.2303579
Kurtosis	10.415817
Mean	18.376481
Median Absolute Deviation (MAD)	8
Skewness	2.7266078
Sum	633786.44
Variance	511.19617
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	6186	17.6%
3	1503	4.3%
4	1306	3.7%
6	1258	3.6%
7	1239	3.5%
5	1192	3.4%
9	1178	3.4%
8	1149	3.3%
10	1122	3.2%
11	911	2.6%
Other values (450)	17445	49.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2856	3	< 0.1%
0.5712	3	< 0.1%
0.8568	5	< 0.1%
1	2	< 0.1%
1.1424	12	< 0.1%
1.428	10	< 0.1%
1.7136	13	< 0.1%
1.9992	16	< 0.1%
2	6186	17.6%
2.2848	27	0.1%

Value	Count	Frequency (%)
282	1	< 0.1%
225	1	< 0.1%
221	1	< 0.1%
216	1	< 0.1%
215	1	< 0.1%
207	1	< 0.1%
204	1	< 0.1%
197	1	< 0.1%
194	1	< 0.1%
193	1	< 0.1%

NO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	958
Distinct (%)	2.8%
Missing	1070
Missing (%)	3.1%
Infinite	0
Infinite (%)	0.0%
Mean	65.258789

Minimum	1.6424
Maximum	264
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1.6424
5-th percentile	14
Q1	36
median	60
Q3	88
95-th percentile	135
Maximum	264
Range	262.3576
Interquartile range (IQR)	52

Descriptive statistics

Standard deviation	37.996088
Coefficient of variation (CV)	0.5822371
Kurtosis	0.80462239
Mean	65.258789
Median Absolute Deviation (MAD)	26
Skewness	0.83624111
Sum	2218407.3
Variance	1443.7027
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
42	347	1.0%
34	340	1.0%
41	338	1.0%
40	333	0.9%
47	326	0.9%
50	325	0.9%
32	325	0.9%
26	323	0.9%
44	321	0.9%
56	316	0.9%
Other values (948)	30700	87.6%
(Missing)	1070	3.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1.6424	1	< 0.1%
2	104	0.3%
2.2583	1	< 0.1%
2.8742	1	< 0.1%
3	15	< 0.1%
4	27	0.1%
4.106	1	< 0.1%
4.5166	1	< 0.1%
4.7219	1	< 0.1%
4.9272	1	< 0.1%

Value	Count	Frequency (%)
264	1	< 0.1%
263	1	< 0.1%
259	1	< 0.1%
257	1	< 0.1%
253	2	< 0.1%
252	1	< 0.1%
251	2	< 0.1%
250	1	< 0.1%
249	1	< 0.1%
248	1	< 0.1%

CO
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	120
Distinct (%)	0.4%
Missing	1812
Missing (%)	5.2%
Infinite	0
Infinite (%)	0.0%
Mean	1319.3535

Minimum	100
Maximum	10000
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	100
5-th percentile	200
Q1	500
median	900
Q3	1600
95-th percentile	4000
Maximum	10000
Range	9900
Interquartile range (IQR)	1100

Descriptive statistics

Standard deviation	1268.1143
Coefficient of variation (CV)	0.96116342
Kurtosis	7.3300943
Mean	1319.3535
Median Absolute Deviation (MAD)	400
Skewness	2.4073928
Sum	43871143
Variance	1608114
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
600	2475	7.1%
300	2418	6.9%
700	2386	6.8%
500	2227	6.4%
400	2185	6.2%
800	2125	6.1%
900	1924	5.5%
1000	1704	4.9%
1100	1544	4.4%
1200	1290	3.7%
Other values (110)	12974	37.0%
(Missing)	1812	5.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
100	513	1.5%
200	1199	3.4%
300	2418	6.9%
400	2185	6.2%
500	2227	6.4%
600	2475	7.1%
700	2386	6.8%
800	2125	6.1%
900	1924	5.5%
1000	1704	4.9%

Value	Count	Frequency (%)
10000	7	< 0.1%
9900	1	< 0.1%
9800	4	< 0.1%
9700	1	< 0.1%
9600	3	< 0.1%
9500	1	< 0.1%
9400	2	< 0.1%
9300	4	< 0.1%
9200	2	< 0.1%
9100	3	< 0.1%

O3
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	734
Distinct (%)	2.2%
Missing	2107
Missing (%)	6.0%
Infinite	0
Infinite (%)	0.0%
Mean	48.873614

Minimum	0.2142
Maximum	364
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2142
5-th percentile	2
Q1	4
median	32
Q3	73
95-th percentile	167
Maximum	364
Range	363.7858
Interquartile range (IQR)	69

Descriptive statistics

Standard deviation	55.11174
Coefficient of variation (CV)	1.1276379
Kurtosis	2.6728349
Mean	48.873614
Median Absolute Deviation (MAD)	30
Skewness	1.5951624
Sum	1610727.7
Variance	3037.3039
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	6228	17.8%
3	811	2.3%
1	804	2.3%
4	745	2.1%
5	552	1.6%
6	507	1.4%
7	365	1.0%
8	344	1.0%
9	287	0.8%
12	284	0.8%
Other values (724)	22030	62.8%
(Missing)	2107	6.0%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2142	50	0.1%
0.4284	38	0.1%
0.6426	42	0.1%
0.8568	20	0.1%
1	804	2.3%
1.071	17	< 0.1%
1.2852	18	0.1%
1.4994	22	0.1%
1.7136	17	< 0.1%
1.9278	14	< 0.1%

Value	Count	Frequency (%)
364	1	< 0.1%
357	2	< 0.1%
353	1	< 0.1%
352	1	< 0.1%
351	1	< 0.1%
347	1	< 0.1%
346	1	< 0.1%
344	2	< 0.1%
342	2	< 0.1%
339	1	< 0.1%

TEMP
Real number (ℝ)

HIGH CORRELATION

Distinct	971
Distinct (%)	2.8%
Missing	20
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	13.428865

Minimum	-15.8
Maximum	40.5
Zeros	172
Zeros (%)	0.5%
Negative	5415
Negative (%)	15.4%
Memory size	274.1 KiB

Quantile statistics

Minimum	-15.8
5-th percentile	-4.17925
Q1	3.2
median	14.3
Q3	22.9
95-th percentile	30.6
Maximum	40.5
Range	56.3
Interquartile range (IQR)	19.7

Descriptive statistics

Standard deviation	11.346931
Coefficient of variation (CV)	0.84496573
Kurtosis	-1.1275469
Mean	13.428865
Median Absolute Deviation (MAD)	9.7
Skewness	-0.085516299
Sum	470601.15
Variance	128.75284
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	228	0.7%
1	218	0.6%
-2	195	0.6%
2	194	0.6%
-1	173	0.5%
0	172	0.5%
21.7	165	0.5%
-4	149	0.4%
4	139	0.4%
23.6	138	0.4%
Other values (961)	33273	94.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-15.8	1	< 0.1%
-15.5	1	< 0.1%
-15.3	1	< 0.1%
-15.2	1	< 0.1%
-15.1	1	< 0.1%
-15	3	< 0.1%
-14.9	2	< 0.1%
-14.8	2	< 0.1%
-14.7	1	< 0.1%
-14.5	2	< 0.1%

Value	Count	Frequency (%)
40.5	1	< 0.1%
40.3	1	< 0.1%
40.1	1	< 0.1%
39.2	1	< 0.1%
39	1	< 0.1%
38.7	2	< 0.1%
38.3	1	< 0.1%
38.2	1	< 0.1%
38.1	1	< 0.1%
38	2	< 0.1%

PRES
Real number (ℝ)

HIGH CORRELATION

Distinct	593
Distinct (%)	1.7%
Missing	20
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1011.0975

Minimum	985.9
Maximum	1040.3
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	985.9
5-th percentile	995.5
Q1	1002.5
median	1010.8
Q3	1019.4
95-th percentile	1028
Maximum	1040.3
Range	54.4
Interquartile range (IQR)	16.9

Descriptive statistics

Standard deviation	10.355247
Coefficient of variation (CV)	0.01024159
Kurtosis	-0.9135443
Mean	1011.0975
Median Absolute Deviation (MAD)	8.4
Skewness	0.1095566
Sum	35432902
Variance	107.23113
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1024	262	0.7%
1023	254	0.7%
1019	252	0.7%
1025	251	0.7%
1020	247	0.7%
1021	237	0.7%
1022	228	0.7%
1026	226	0.6%
1018	222	0.6%
1017	220	0.6%
Other values (583)	32645	93.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
985.9	1	< 0.1%
986	1	< 0.1%
986.1	1	< 0.1%
986.2	1	< 0.1%
986.3	2	< 0.1%
986.4	1	< 0.1%
986.5	1	< 0.1%
986.6	1	< 0.1%
986.7	1	< 0.1%
986.9	1	< 0.1%

Value	Count	Frequency (%)
1040.3	1	< 0.1%
1040.2	1	< 0.1%
1039.9	1	< 0.1%
1039.7	2	< 0.1%
1039.6	2	< 0.1%
1039.5	3	< 0.1%
1039.3	4	< 0.1%
1039.2	1	< 0.1%
1038.9	2	< 0.1%
1038.8	3	< 0.1%

DEWP
Real number (ℝ)

HIGH CORRELATION

Distinct	600
Distinct (%)	1.7%
Missing	20
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	3.2665877

Minimum	-34.9
Maximum	28.5
Zeros	65
Zeros (%)	0.2%
Negative	14742
Negative (%)	42.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	-34.9
5-th percentile	-19.1
Q1	-8.1
median	4
Q3	15.8
95-th percentile	22.4
Maximum	28.5
Range	63.4
Interquartile range (IQR)	23.9

Descriptive statistics

Standard deviation	13.67806
Coefficient of variation (CV)	4.1872623
Kurtosis	-1.1234199
Mean	3.2665877
Median Absolute Deviation (MAD)	11.9
Skewness	-0.21502917
Sum	114474.3
Variance	187.08931
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
17.2	145	0.4%
17.6	135	0.4%
17	130	0.4%
19.2	130	0.4%
18.3	129	0.4%
18.2	128	0.4%
18.8	127	0.4%
17.8	125	0.4%
16.7	125	0.4%
17.5	124	0.4%
Other values (590)	33746	96.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-34.9	1	< 0.1%
-34.5	2	< 0.1%
-34	1	< 0.1%
-33.8	1	< 0.1%
-33.7	1	< 0.1%
-33.5	1	< 0.1%
-32.9	1	< 0.1%
-32.6	1	< 0.1%
-32.5	2	< 0.1%
-32.3	1	< 0.1%

Value	Count	Frequency (%)
28.5	1	< 0.1%
27.8	5	< 0.1%
27.7	1	< 0.1%
27.6	1	< 0.1%
27.5	3	< 0.1%
27.4	1	< 0.1%
27.3	2	< 0.1%
27.2	3	< 0.1%
27	5	< 0.1%
26.9	3	< 0.1%

RAIN
Real number (ℝ)

SKEWED ZEROS

Distinct	125
Distinct (%)	0.4%
Missing	20
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	0.068262755

Minimum	0
Maximum	72.5
Zeros	33608
Zeros (%)	95.8%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	0
Maximum	72.5
Range	72.5
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	0.89672555
Coefficient of variation (CV)	13.136381
Kurtosis	1893.365
Mean	0.068262755
Median Absolute Deviation (MAD)	0
Skewness	34.942184
Sum	2392.2
Variance	0.80411671
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	33608	95.8%
0.1	333	0.9%
0.2	173	0.5%
0.3	99	0.3%
0.4	84	0.2%
0.5	80	0.2%
0.6	59	0.2%
0.9	47	0.1%
0.7	47	0.1%
0.8	42	0.1%
Other values (115)	472	1.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	33608	95.8%
0.1	333	0.9%
0.2	173	0.5%
0.3	99	0.3%
0.4	84	0.2%
0.5	80	0.2%
0.6	59	0.2%
0.7	47	0.1%
0.8	42	0.1%
0.9	47	0.1%

Value	Count	Frequency (%)
72.5	1	< 0.1%
47.7	1	< 0.1%
40.7	1	< 0.1%
38.9	1	< 0.1%
28.9	1	< 0.1%
26.8	1	< 0.1%
26	1	< 0.1%
25.9	1	< 0.1%
23.7	1	< 0.1%
23.6	1	< 0.1%

wd
Categorical

Distinct	16
Distinct (%)	< 0.1%
Missing	123
Missing (%)	0.4%
Memory size	274.1 KiB

NE	6703
SW	4644
ENE	3642
NNE	3327
N	3219
Other values (11)	13406

Length

Max length	3
Median length	2
Mean length	2.2350248
Min length	1

Characters and Unicode

Total characters	78094
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	NNW
2nd row	N
3rd row	NNW
4th row	NW
5th row	N

Common Values

Value	Count	Frequency (%)
NE	6703	19.1%
SW	4644	13.2%
ENE	3642	10.4%
NNE	3327	9.5%
N	3219	9.2%
WSW	2529	7.2%
SSW	2101	6.0%
NNW	1397	4.0%
W	1335	3.8%
E	1264	3.6%
Other values (6)	4780	13.6%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
ne	6703	19.2%
sw	4644	13.3%
ene	3642	10.4%
nne	3327	9.5%
n	3219	9.2%
wsw	2529	7.2%
ssw	2101	6.0%
nnw	1397	4.0%
w	1335	3.8%
e	1264	3.6%
Other values (6)	4780	13.7%

Most occurring characters

Value	Count	Frequency (%)
N	24932	31.9%
E	21044	26.9%
W	17268	22.1%
S	14850	19.0%

Most occurring categories

Value	Count	Frequency (%)
Uppercase Letter	78094	100.0%

Most frequent character per category

Uppercase Letter

Value	Count	Frequency (%)
N	24932	31.9%
E	21044	26.9%
W	17268	22.1%
S	14850	19.0%

Most occurring scripts

Value	Count	Frequency (%)
Latin	78094	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
N	24932	31.9%
E	21044	26.9%
W	17268	22.1%
S	14850	19.0%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	78094	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
N	24932	31.9%
E	21044	26.9%
W	17268	22.1%
S	14850	19.0%

WSPM
Real number (ℝ)

ZEROS

Distinct	86
Distinct (%)	0.2%
Missing	14
Missing (%)	< 0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1.5012154

Minimum	0
Maximum	11.2
Zeros	1640
Zeros (%)	4.7%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0.1
Q1	0.8
median	1.2
Q3	2
95-th percentile	3.7
Maximum	11.2
Range	11.2
Interquartile range (IQR)	1.2

Descriptive statistics

Standard deviation	1.1044721
Coefficient of variation (CV)	0.73571863
Kurtosis	2.7306412
Mean	1.5012154
Median Absolute Deviation (MAD)	0.6
Skewness	1.3867358
Sum	52617.6
Variance	1.2198587
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	1912	5.5%
1.1	1869	5.3%
1.2	1865	5.3%
0.9	1776	5.1%
0.8	1692	4.8%
0	1640	4.7%
1.3	1615	4.6%
0.7	1535	4.4%
1.4	1528	4.4%
0.6	1422	4.1%
Other values (76)	18196	51.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1640	4.7%
0.1	668	1.9%
0.2	676	1.9%
0.3	486	1.4%
0.4	858	2.4%
0.5	1161	3.3%
0.6	1422	4.1%
0.7	1535	4.4%
0.8	1692	4.8%
0.9	1776	5.1%

Value	Count	Frequency (%)
11.2	1	< 0.1%
9.1	1	< 0.1%
8.6	1	< 0.1%
8.4	1	< 0.1%
8.3	2	< 0.1%
8.1	1	< 0.1%
8	1	< 0.1%
7.9	1	< 0.1%
7.7	1	< 0.1%
7.6	4	< 0.1%

station
Categorical

CONSTANT

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

Wanliu	35064

Length

Max length	6
Median length	6
Mean length	6
Min length	6

Characters and Unicode

Total characters	210384
Distinct characters	6
Distinct categories	2 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	Wanliu
2nd row	Wanliu
3rd row	Wanliu
4th row	Wanliu
5th row	Wanliu

Common Values

Value	Count	Frequency (%)
Wanliu	35064	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
wanliu	35064	100.0%

Most occurring characters

Value	Count	Frequency (%)
W	35064	16.7%
a	35064	16.7%
n	35064	16.7%
l	35064	16.7%
i	35064	16.7%
u	35064	16.7%

Most occurring categories

Value	Count	Frequency (%)
Lowercase Letter	175320	83.3%
Uppercase Letter	35064	16.7%

Most frequent character per category

Lowercase Letter

Value	Count	Frequency (%)
a	35064	20.0%
n	35064	20.0%
l	35064	20.0%
i	35064	20.0%
u	35064	20.0%

Uppercase Letter

Value	Count	Frequency (%)
W	35064	100.0%

Most occurring scripts

Value	Count	Frequency (%)
Latin	210384	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
W	35064	16.7%
a	35064	16.7%
n	35064	16.7%
l	35064	16.7%
i	35064	16.7%
u	35064	16.7%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	210384	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
W	35064	16.7%
a	35064	16.7%
n	35064	16.7%
l	35064	16.7%
i	35064	16.7%
u	35064	16.7%

Auto

Heatmap
Table

	CO	DEWP	NO2	No	O3	PM10	PM2.5	PRES	RAIN	SO2	TEMP	WSPM	day	hour	month	wd	year
CO	1.000	0.000	0.725	-0.042	-0.466	0.717	0.817	0.157	-0.021	0.582	-0.294	-0.335	0.003	-0.047	0.010	0.082	0.074
DEWP	0.000	1.000	-0.068	-0.127	0.238	0.132	0.225	-0.784	0.176	-0.341	0.822	-0.305	0.025	-0.011	0.255	0.100	0.158
NO2	0.725	-0.068	1.000	-0.151	-0.627	0.688	0.673	0.147	-0.119	0.552	-0.307	-0.388	0.020	-0.034	-0.051	0.113	0.116
No	-0.042	-0.127	-0.151	1.000	0.033	-0.135	-0.119	0.171	0.012	-0.359	-0.120	-0.036	0.018	0.001	0.044	0.106	0.862
O3	-0.466	0.238	-0.627	0.033	1.000	-0.264	-0.267	-0.411	-0.001	-0.232	0.578	0.415	-0.021	0.281	-0.130	0.149	0.070
PM10	0.717	0.132	0.688	-0.135	-0.264	1.000	0.885	-0.079	-0.100	0.500	-0.049	-0.230	0.025	0.036	-0.020	0.056	0.093
PM2.5	0.817	0.225	0.673	-0.119	-0.267	0.885	1.000	-0.085	-0.033	0.514	-0.030	-0.284	0.017	-0.006	0.016	0.054	0.066
PRES	0.157	-0.784	0.147	0.171	-0.411	-0.079	-0.085	1.000	-0.081	0.276	-0.832	0.087	0.015	-0.037	0.001	0.071	0.150
RAIN	-0.021	0.176	-0.119	0.012	-0.001	-0.100	-0.033	-0.081	1.000	-0.164	0.043	-0.044	-0.008	-0.001	0.056	0.008	0.000
SO2	0.582	-0.341	0.552	-0.359	-0.232	0.500	0.514	0.276	-0.164	1.000	-0.362	0.031	0.003	0.037	-0.200	0.047	0.108
TEMP	-0.294	0.822	-0.307	-0.120	0.578	-0.049	-0.030	-0.832	0.043	-0.362	1.000	0.052	0.017	0.147	0.120	0.105	0.147
WSPM	-0.335	-0.305	-0.388	-0.036	0.415	-0.230	-0.284	0.087	-0.044	0.031	0.052	1.000	-0.002	0.176	-0.206	0.143	0.035
day	0.003	0.025	0.020	0.018	-0.021	0.025	0.017	0.015	-0.008	0.003	0.017	-0.002	1.000	0.000	0.010	0.024	0.000
hour	-0.047	-0.011	-0.034	0.001	0.281	0.036	-0.006	-0.037	-0.001	0.037	0.147	0.176	0.000	1.000	0.000	0.141	0.000
month	0.010	0.255	-0.051	0.044	-0.130	-0.020	0.016	0.001	0.056	-0.200	0.120	-0.206	0.010	0.000	1.000	0.083	0.249
wd	0.082	0.100	0.113	0.106	0.149	0.056	0.054	0.071	0.008	0.047	0.105	0.143	0.024	0.141	0.083	1.000	0.110
year	0.074	0.158	0.116	0.862	0.070	0.093	0.066	0.150	0.000	0.108	0.147	0.035	0.000	0.000	0.249	0.110	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

The correlation heatmap measures nullity correlation: how strongly the presence or absence of one variable affects the presence of another.

First rows
Last rows

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
0	1	2013	3	1	0	8.0	8.0	6.0	28.0	400.0	52.0	-0.7	1023.0	-18.8	NNW	4.4	Wanliu
1	2	2013	3	1	1	9.0	9.0	6.0	28.0	400.0	50.0	-1.1	1023.2	-18.2	N	4.7	Wanliu
2	3	2013	3	1	2	3.0	6.0	NaN	19.0	400.0	55.0	-1.1	1023.5	-18.2	NNW	5.6	Wanliu
3	4	2013	3	1	3	11.0	30.0	8.0	14.0	NaN	NaN	-1.4	1024.5	-19.4	NW	3.1	Wanliu
4	5	2013	3	1	4	3.0	13.0	9.0	NaN	300.0	54.0	-2.0	1025.2	-19.5	N	2.0	Wanliu
5	6	2013	3	1	5	3.0	6.0	8.0	17.0	300.0	54.0	-2.2	1025.6	-19.6	N	3.7	Wanliu
6	7	2013	3	1	6	3.0	3.0	10.0	21.0	300.0	52.0	-2.6	1026.5	-19.1	NNE	2.5	Wanliu
7	8	2013	3	1	7	3.0	6.0	11.0	26.0	300.0	47.0	-1.6	1027.4	-19.1	NNW	3.8	Wanliu
8	9	2013	3	1	8	7.0	10.0	14.0	39.0	400.0	36.0	0.1	1028.3	-19.2	NNW	4.1	Wanliu
9	10	2013	3	1	9	3.0	9.0	12.0	31.0	400.0	46.0	1.2	1028.5	-19.3	N	2.6	Wanliu

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
35054	35055	2017	2	28	14	3.0	17.0	2.0	6.0	200.0	98.0	16.2	1011.7	-14.4	NW	2.6	Wanliu
35055	35056	2017	2	28	15	5.0	19.0	3.0	6.0	200.0	100.0	16.2	1011.2	-14.4	WNW	2.6	Wanliu
35056	35057	2017	2	28	16	9.0	22.0	4.0	10.0	300.0	97.0	16.0	1011.0	-14.5	NW	2.8	Wanliu
35057	35058	2017	2	28	17	11.0	28.0	4.0	11.0	300.0	96.0	15.0	1011.0	-15.3	WNW	2.5	Wanliu
35058	35059	2017	2	28	18	6.0	37.0	3.0	20.0	400.0	84.0	13.0	1011.6	-13.9	WNW	2.0	Wanliu
35059	35060	2017	2	28	19	11.0	27.0	4.0	20.0	300.0	81.0	12.6	1011.9	-14.3	N	2.0	Wanliu
35060	35061	2017	2	28	20	15.0	43.0	6.0	55.0	500.0	45.0	9.4	1012.3	-11.9	WSW	1.0	Wanliu
35061	35062	2017	2	28	21	13.0	35.0	7.0	48.0	500.0	48.0	8.7	1012.8	-13.7	N	1.1	Wanliu
35062	35063	2017	2	28	22	12.0	31.0	5.0	47.0	500.0	50.0	7.8	1012.9	-12.6	NNE	1.0	Wanliu
35063	35064	2017	2	28	23	7.0	25.0	6.0	86.0	700.0	11.0	7.0	1012.6	-11.2	NE	1.1	Wanliu

Overview

Variables

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Decimal Number

Most occurring scripts

Most frequent character per script

Common

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Lowercase Letter

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Interactions

Correlations

Missing values

Sample